Aether Refinery is one of those cards players keep asking about. Here is, in plain words, what its official text says, the rulings published by Wizards of the Coast, and the combos players actually run.
Official card text
If you would get one or more(energy counters), you get twice that many
: You get
Complete guide
Aether Refinery is a powerful artifact that serves as a cornerstone for energy-based decks, doubling your resource generation while providing a reliable outlet for those reserves. This card transforms every minor energy gain into a significant advantage, allowing you to build a massive board presence with ease. Mastering its replacement effect and activated ability is key to dominating the battlefield with Aetherborn tokens.
What It Does
Aether Refinery has two primary functions: a static replacement effect and an activated ability. The static ability doubles any amount of energy counters {E} you would receive. The activated ability is a self-contained engine; it gives you one energy counter (which is immediately doubled to two by the first ability) and then allows you to spend any amount of your energy to create a black Aetherborn creature token with power and toughness equal to the energy spent.
How It Resolves Step by Step
When you activate the {T} ability, the first step is gaining {E}. Because of the Refinery's own static ability, you actually receive two {E} instead of one. After receiving the counters, you reach a 'may pay' decision point. You choose an amount of {E} from your total energy reserve and pay it. If you paid at least one {E}, a single Aetherborn creature token is created with X/X stats. Note that the entire process happens during the resolution of the ability; once you decide how much to pay, no player can react before the token enters the battlefield.
Common Mistakes
A common point of confusion is how energy interacts with mana. As noted in the official rulings, energy counters are not mana; they do not disappear when phases end, and cards like Gilded Lotus cannot produce them. Additionally, players often forget that multiple Aether Refineries are cumulative. If you control two, your energy gains are multiplied by four; three Refineries multiply gains by eight.
When to Play It
Aether Refinery is best deployed when you already have a way to generate energy or when you need a late-game mana sink to create large threats. Since it costs six mana, it is a high-end investment. Ideally, you want to tap it on the same turn it is played or immediately after your opponent's end step to maximize the doubling effect of other energy-generating spells in your deck.
Interaction examples
Aether RefineryWith Aether Refinery on the battlefield, you tap it. The ability says 'You get {E}'. The replacement effect doubles this, so you get 2 {E} added to your Energy Reserve. You then choose to pay those 2 {E} (plus any you already had) to create a 2/2 black Aetherborn creature token. If you had 3 energy stored previously and paid all 5, you would create a 5/5 token.
If you control two copies of Aether Refinery and activate one, the first Refinery's 'get {E}' effect is doubled by the first replacement effect to 2 {E}, and then that amount is doubled again by the second Refinery. You end up gaining 4 {E} from a single tap. You can then spend any amount of your total energy to create one large Aetherborn token.
Vanquisher's BannerIf you have Vanquisher's Banner in play naming 'Aetherborn', any token created by Aether Refinery will receive a +1/+1 boost. If you pay 3 {E} during the Refinery's resolution, you create a 3/3 token that immediately becomes a 4/4 due to the Banner's static ability. Note that the Banner's draw ability only triggers on 'casting', so it won't trigger when the Refinery creates a token.
Guide written with AI from the official text and rulings. Official English text prevails.
How it works : Aether Refinery
Original English text — Wizards of the Coast / Scryfall
- #1· Wizards of the Coast
If you control two Aether Refineries, the amount of
you get is four times the original number. Three Aether Refineries multiplies the original number by eight, and so on.No other card is named in this ruling.
- #2· Wizards of the Coast
If two or more effects attempt to modify how many
you get (or how many counters you would get), you choose the order to apply those effects, no matter who controls the sources of those effects.No other card is named in this ruling.
- #3· Wizards of the Coast is the energy symbol. It represents one energy counter.
No other card is named in this ruling.
- #4· Wizards of the Coast
Energy counters are a kind of counter that a player may have. They're not associated with any specific permanents.
No other card is named in this ruling.
- #5· Wizards of the Coast
Keep track of how many energy counters each player has. Potential ways to track this include writing theme down on paper or using dice, but any method that is clear and mutually agreeable is fine. (At higher levels of tournament play, dice may not be allowed for tracking counters that players have.)
No other card is named in this ruling.
- #6· Wizards of the Coast
If an effect says you get one or more
, you get that many energy counters. To pay one or more , you lose that many energy counters. You can't pay more energy counters than you have. Any effects that interact with counters a player gets, has, or loses can interact with energy counters.No other card is named in this ruling.
- #7· Wizards of the Coast
Energy counters aren't mana. They don't go away as steps, phases, and turns end, and effects that add mana "of any type" can't give you energy counters.
No other card is named in this ruling.
- #8· Wizards of the Coast
Some triggered abilities state that you "may pay" a certain amount of
. You can't pay that amount multiple times to multiply the effect. You simply choose whether or not to pay that amount of as the ability resolves.No other card is named in this ruling.
- #9· Wizards of the Coast
Some triggered abilities that state that you "may pay" a certain amount of
describe an effect that happens "If you do." In that case, no player may take actions to try to stop the ability's effect after you make your choice. If the payment is followed by the phrase "When you do," then you'll choose any targets for that reflexive triggered ability and put it on the stack before players can take actions.No other card is named in this ruling.
- #10· Wizards of the Coast
If a spell or ability with one or more targets states that you "may pay" some amount of
, and each permanent that it targets has become an illegal target, the spell or ability won't resolve. You can't pay any even if you want to.No other card is named in this ruling.
- #11· Wizards of the Coast
Some spells and abilities that give you
may require targets. If each target chosen is an illegal target as that spell or ability tries to resolve, it won't resolve. You won't get any .No other card is named in this ruling.
Popular combos
Real combos played by the community, sorted by popularity.
Automated Assembly Line + Gonti's Aether Heart + Aether Refinery
- 1Activate Automated Assembly Line by paying , creating a 3/3 Robot artifact creature token.
- 2When the Robot enters the battlefield, Gonti's Aether Heart triggers, causing you to get .
- 3Repeat.
Whirler Virtuoso + Guide of Souls + Izzet Generatorium + Aether Refinery
- 1Activate Whirler Virtuoso by paying , creating a 1/1 Thopter artifact creature token.
- 2When the Thopter enters the battlefield, Guide of Souls triggers, causing you to get and gain 1 life.
- 3Repeat.
Whirler Virtuoso + Guide of Souls + Sphinx of the Revelation + Aether Refinery
- 1Activate Whirler Virtuoso by paying , creating a 1/1 Thopter artifact creature token.
- 2When the Thopter enters the battlefield, Guide of Souls triggers, causing you to get and gain 1 life.
- 3Sphinx of the Revelation triggers, causing you to get .
- 4Repeat.
Automated Assembly Line + Guide of Souls + Sphinx of the Revelation + Aether Refinery
- 1Activate Automated Assembly Line by paying , creating a 3/3 Robot artifact creature token.
- 2When the Robot enters the battlefield, Guide of Souls triggers, causing you to get and gain 1 life.
- 3Sphinx of the Revelation triggers, causing you to get .
- 4Repeat.
Aethertide Whale + Nissa, Worldsoul Speaker + Aether Refinery
- 1Cast Aethertide Whale by paying eight if able or
otherwise. - 2When Aethertide Whale enters the battlefield, it triggers, causing you to get twelve .
- 3Activate Aethertide Whale by paying , returning it from the battlefield to your hand.
- 4Repeat.
Saheeli, Radiant Creator + Lightning Runner + Aethertide Whale + Aether Refinery
- 1At the beginning of your combat phase, Saheeli triggers, causing you to pay to create a token copy of Aethertide Whale with haste.
- 2When the Aethertide Whale token enters the battlefield, it triggers, causing you to get twelve .
- 3Declare Lightning Runner as an attacker, triggering its ability, causing you to get and then pay eight to untap all creatures you control and to get an additional combat phase after this one.
- 4Repeat each combat phase.
Whirler Virtuoso + Guide of Souls + Lae'zel, Vlaakith's Champion + Aether Refinery
- 1Activate Whirler Virtuoso by paying , creating a 1/1 Thopter artifact creature token.
- 2When the Thopter enters the battlefield, Guide of Souls triggers, causing you to get and gain 1 life.
- 3Repeat.
Whirler Virtuoso + Guide of Souls + Winding Constrictor + Aether Refinery
- 1Activate Whirler Virtuoso by paying , creating a 1/1 Thopter artifact creature token.
- 2When the Thopter enters the battlefield, Guide of Souls triggers, causing you to get and gain 1 life.
- 3Repeat.
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Meta decks with Aether Refinery
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